OfficeJet 8500 A910 Won't Print Wirelessly Now

OK, frustration reaching boiling levels. I have a 8500 A910 OfficeJet that installed and worked fine printing wirelessly for several weeks. Now all of a sudden, it won't connect via my PC at all.

I'm running Windows 7 64 bit

I'm connected to the network with my printer and have an IP address. Computer is connected to same network but can't find the printer. I've tried entering the IP address as the printer in the utility but it won't work. I've tried entering the printer IP in my web browser and get a "page not found" error. I've uninstalled and re-installed the printer software twice, once from CD and once from HP website. Firewall is not an issue. I'm out of ideas.